html {
	font-size: 10px;
}

body {
	font-size: 14px;
	width: 1280px;
	margin: 0 auto;
}

/*下面是header区域的样式设置*/

header#head-area01 {
	width: 100%;
	background: white;
	height: auto;
	position: fixed;
	top: 0px;
	z-index: 3000;
}


/*header区域下面的第一个大盒子div的宽高度等样式设置*/

header#head-area01 div.header-son-div {
	width: 1280px;
	height: 80px;
	padding: 5px 0;
	line-height: 35px;
}

div.header-son-div div.header-grandson-div {
	width: 100%;
	height: 100%;
	margin: 0 auto;
	font-size: 1.5rem;
}

div.header-son-div div.header-grandson-div>ul {
	height: 50%;
	width: 100%;
}

div.header-son-div div.header-grandson-div>ul>li {
	float: left;
	transition: all 0.4s;
	text-align: center;
	text-overflow: ellipsis;
	white-space: nowrap;
}

div.header-son-div div.header-grandson-div>ul:after {
	content: "";
	display: block;
	clear: both;
}

/*div下的第一个ul列表的样式设置*/

div.header-grandson-div>ul:nth-of-type(1)>li {
	width: 17.2%;
	letter-spacing: 6px;
	
}

div.header-son-div div.header-grandson-div>ul:nth-of-type(1)>li:nth-of-type(1) {
	width: 14%;
	height: 100%;
}

div.header-son-div div.header-grandson-div>ul>li:nth-of-type(1) img {
	height: 100%;
	width: auto;
	vertical-align: top;
}
/*鼠标悬浮于div下的ul所有的li上时不让第一个装有图片的li背景变色，变色就不好看*/

div.header-grandson-div>ul>li:not(:first-of-type):hover {
	background: rgba(241, 100, 30, 0.8);
	cursor: pointer;
	color: white;
}
/*div下的第二个ul列表的样式设置*/

div.header-grandson-div>ul:nth-of-type(2)>li {
	width: 16.8%;
	letter-spacing: 6px;
	
}

div.header-grandson-div>ul:nth-of-type(2)>li:nth-of-type(1) {
	width: 16%;
}
/*装有 “ 下载App字样 ”的那个li，最后一个li*/
div.header-grandson-div>ul:nth-of-type(2)>li:nth-last-of-type(1) {
	border-radius: 50px;
	background: rgba(241, 100, 30, 0.8);
	box-sizing: border-box;
}
/*含有搜索框class=search-input的li盒子的样式设置*/
div.header-grandson-div>ul:nth-of-type(2)>li:nth-of-type(1):hover .search-div {
	width: 320px;
	z-index: 200;
	border-bottom: 2px solid rgb(46, 104, 211);
	box-shadow: 0 0 7px aqua;
}

div.header-grandson-div>ul:nth-of-type(2)>li:not(:first-of-type):hover {
	background: rgba(241, 100, 30, 0.8);
	cursor: pointer;
}

div.header-grandson-div>ul>li>a {
	display: block;
	width: 100%;
	height: 100%;
}

div.header-grandson-div>ul>li:hover>a {
	color: white;
}

div.header-grandson-div>ul>li {
	position: relative;
}

/*类名class=fold-li是那些隐藏起来的div的父元素li*/

div.header-grandson-div li.fold-li>div:nth-of-type(2) {
	position: absolute;
	top: 100%;
	width: 100%;
	height: 0;
	overflow: hidden;
	transition: all 0.3s;
}
/*下面是设置鼠标悬浮于折叠div的li上时向下箭头的图片旋转变成向上箭头*/

div.header-grandson-div li.fold-li:hover img {
	transform: rotate(180deg);
}

div.header-grandson-div li.fold-li>div:nth-of-type(2) ul {
	background: rgba(251, 135, 60, 0.95);
	width: 100%;
	position: relative;
	margin-top: 20px;
}

div.header-grandson-div li.fold-li>div:nth-of-type(2) ul:before {
	content: "";
	display: block;
	position: absolute;
	left: 50%;
	bottom: 100%;
	transform: translate(-50%, 0);
	z-index: 200;
	width: 0;
	height: 0;
	border-style: solid;
	border-width: 20px;
	border-color: transparent transparent rgba(251, 135, 60, 0.95);
}

div.header-grandson-div li.fold-li>div:nth-of-type(2) li {
	height: 50px;
	line-height: 50px;
	border-bottom: 1px dashed rgba(200, 100, 10, 1);
}

div.header-grandson-div li.fold-li>div:nth-of-type(2) li:hover {
	background: rgba(245, 245, 245, 0.95);
}

div.header-grandson-div li.fold-li>div:nth-of-type(2) li:hover>a {
	color: rgba(245, 120, 50, 1);
	font-weight: bold;
}

div.header-grandson-div li.fold-li>div:nth-of-type(2) li>a {
	color: white;
}
/*装有“关于我们”的隐藏的盒子div的样式设置*/

div.header-grandson-div li.allocate-goods:hover>div:nth-of-type(2) {
	height: 270px;
	/*这里是因为ul列表距离顶部的margin-top为20px，所以得再加20px得到270px*/
}
/*装有“发物流”的隐藏的盒子div的样式设置*/
div.header-grandson-div li.about-us:hover>div:nth-of-type(2) {
	height: 120px;
	/*这里是因为ul列表距离顶部的margin-top为20px，所以得再加20px得到120px*/
}
/*以上是关于头部部分header区域的样式设置*/